You can get support from the third party developer on our Discord server in the channel #Stopwatch. Please take into account that developers come from all over the world so they may not live in the same timezone and therefor a response may be given on a later hour.
Plugin provides a simple stopwatch function. Can be used to time actions in Touchportal, create reaction games in OBS, time how long it takes you to complete level 5 of Super Mario... etc